
This invisible Covid-19 mitigation measure is finally getting the attention it deserves
CNN
With mask mandates virtually gone and vaccinaton rates at a standstill, there's one mitigation measure that can still make a big difference: ventilation.
Respiratory backwash
"The challenge for organizations that improve air quality is that it's invisible," said Joseph Allen, director of the Healthy Buildings Program at the Harvard T.H. Chan School of Public Health.
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